Product photo — see the table below for main specifications; non-standard designs welcome
Four Point Contact Ball Bearings
The peach-shaped inner raceway lets a single bearing take axial loads in both directions plus some radial load — equivalent to a DB pair of angular contact bearings in one compact unit for slewing rims, cranes and large valve drives.
| Category | Angular Contact Ball Bearings |
| Precision class | P0 / P6 / P5 (P4 for precision types) |
| Clearance group | C0 / C2 / C3 / C4 (by application) |
| Material | GCr15 high-carbon chromium steel / carburising steel (optional) |
| Heat treatment | Quenched & tempered, 58–64 HRC, dimensional stabilised |
| Standards | GB/T 307 / ISO 492 / JB-T (per product) |
Series note: Angular contact ball bearings carry combined radial and one-direction axial loads with contact angles of 15°/25°/40°; pairs provide bidirectional location and preload with excellent high-spe…
